JP3093428U - Ozone water generator - Google Patents

Abstract

(57) [Summary] [Problem] To improve the performance of an apparatus and to stabilize the performance by optimizing the ozone generation condition by setting the external air to an appropriate temperature and drying it. Provided is an ozone water generator that can be used for general purposes regardless of conditions. SOLUTION: In order to cool the drying unit 60 by liquefying water vapor in external air into water, discharging the water, and supplying dried air to the ozone generator 20, and sending water to the drying unit 60. And a check valve 42 is provided. The injector 41 in which the check valve 42 is opened by injection of supplied water to introduce ozone and dissolve in water.
Ozone water is introduced from the injector 41, the ozone water is discharged, and the insoluble ozone is re-introduced through the return line 91. In the gas-liquid separator 80,
A controller 85 for detecting the level of the ozone water.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

  The present invention relates to an ozone water generator for treating polluted water in an environmentally friendly manner. Especially when ozone-dissolved water is produced by dissolving ozone in water, ozone concentration It is possible to properly prepare ozone-dissolved water according to the intended use by controlling The present invention relates to an ozone water generator having good device stability and performance.

[0002]

[Prior art]

  In general, in order to produce water in which ozone is mixed with water, that is, ozone is dissolved This ozone water generator mixes ozone with water to improve the purification power and sterilization power by ozone. It is known as a device configured for the purpose of obtaining an effect. With this ozone water generator Depending on the method of ozone water generation, pressurized injector method, air diffusion method, bench There are some such as the injector type.

[0003]   Of these, a typical pressurized water injector type ozone water generator is shown in FIG. Pump that sucks in external air and forcibly sends it to the destination 0, changes oxygen in the air sent out through the air pump 10 to ozone Ozone generator 12 having ozone generator 11 and flowing out through ozone generator 12 A mixing unit 14 that mixes ozone and the water from the side of the water supply source 13; Electromagnetic installed in the water supply line 15 for controlling the flow of water from the mixing unit 14 to the mixing unit 14. Valve 16 and the like.

[0004]   This ozone water generator forcibly generates general air from the air pump 10 to generate ozone. When it is sent to the container 12, the ozone generator 12 changes the oxygen in the air into ozone, Part of the converted ozone is decomposed into oxygen again, but most of it is sent to the mixing section 14. It is mixed with water, and the water from the water supply source 13 is discharged as ozone water. Is made.

[0005]   Therefore, the pressurized injector type ozone water generating device is operated by the air pump 10. Is applied by the negative pressure when water passes through the water supply line 15. The zoning is sucked into the mixing section 14 and is turned into ozone water in a state where the gas and the liquid are mixed, that is, water. It is discharged as ozone-dissolved water in which ozone is dissolved.

[0006]   This ozone water generator is often used to maintain an appropriate mixture of water and ozone. Such peripherals are required. For example, a negative pressure is generated in the mixing section that mixes ozone and water. Injector to generate, adjust the amount of input air, or gas and liquid The gas-liquid separator etc. that separates the It is an auxiliary device for obtaining the optimum ozone-dissolved water.

[0007]   Ozone water generator developed further by changing the layout and structure of each ozone water generator An example of the arrangement is shown below.

[0008]   The applicant's application for Korean Utility Model Registration Notice No. 208109, “Ozo Water generator "changes the structure of the solenoid valve (injector) to enter the mixing section. Install a bubble separator on the line to simply increase the water pressure without an air pump. It enables the inflow of ozone, and the residue that could not be mixed in the discharge process of water and ozone. Preventing the discharge of residual ozone and reducing the number of parts by not installing an air pump overall Achieved miniaturization, reuse of ozone, human injury problems due to ozone, and damage to peripheral parts It solves the loss problem.

[0009]   Another Korean utility model registration publication No. 203244 filed by the applicant In the "Ozone water generator", a solenoid valve and injector are installed separately on the flow path. By integrating the solenoid valve and the injector, the problem of shortening the flow path length due to By solving this problem, the flow path length can be shortened, and the air pump can be You can now get Dzong Water.

[0010]

[Patent Document 1]           Republic of Korea Registration Utility Model Registration Publication No. 208109

[Patent Document 2]           Republic of Korea Registration Utility Model Registration Publication No. 203244

[0011]

[Problems to be solved by the device]

  However, such conventional technology mixes artificially generated ozone and water. A technology for changing the structure of the flow path, which is generated during the ozone generation process by the ozone generator. Problems caused by foreign matter and humidity in the air and changes in the ambient temperature. It is possible to solve the problems caused by the durability and performance deterioration of the ozone generator could not.

[0012]   In addition, the drain pipe is frequently clogged during operation of the device, causing water to leave the normal path, Due to the phenomenon of backflow, the mixing equilibrium of water and ozone is disrupted, and normal ozone water is obtained. There is a problem that it becomes impossible to discharge the water, and the overall flow path performance will decline. However, there was a lot of trouble in having to undergo maintenance inspections by highly skilled personnel.

[0013]   For this reason, a high-performance ozone aquatic product that can be easily and easily used in homes and general business offices. There were various restrictions on the design of the production equipment, and there was a limit to maintaining certain performance.

[0014]   The present invention has been made in view of such circumstances, and it is possible to change the indoor and outdoor conditions depending on the flow path conditions. An object of the present invention is to provide an ozone water generator that can be used universally.

[0015]   Further, the present invention maintains the ozone generation conditions required for ozone water generation in an optimum state. By holding it, the performance of the ozone water generator can be improved overall. It is an object of the present invention to provide an ozone water generator that can be used.

[0016]   In addition, the present invention provides ozone according to the internal water level of the gas-liquid separator during the ozone water discharge process. To provide an ozone water generator capable of stably controlling generation and water flow. aimed to.

[0017]   Furthermore, the present invention prevents the deterioration of the device performance of the ozone water generating device and ensures stable use. An object is to provide a good ozone water generator.

[0018]

[Means for Solving the Problems]

  The ozone water generator of the first invention changes the oxygen of the supplied external air into ozone. And an ozone supply line from the ozone generator. Ozone supplied through the water supply and water supplied from the water supply source through the water supply line Is provided in the water supply line and a mixing section for mixing with the water supply source. Solenoid valve for controlling the flow of water to the mixing section from the above, and a gas-liquid for separating ozone and ozone water In an ozone water generator equipped with a separator, the water vapor of the external air is liquefied into water. And the water supply line that discharges the dried air to the ozone generator. Send a part of the water passing through the in to the drying section and return the water to the water supply line again. And a pass line.

[0019]   The ozone water generator of the second invention is the ozone water generator of the first invention, wherein the drying unit is A dehumidifier for removing water vapor and drying air, and a cooler for cooling the dehumidifier, The thermoelectric element is provided between the dehumidifier and the cooler.

[0020]   The ozone water generator of the third invention is the ozone water generator of the second invention, wherein the dehumidifier is external air. A case in which an air introduction pipe for introducing the , A heat sink to be brought into contact with external air, and the other end of the case, Air that sends air dried by the heat sink to the ozone generator The water that has exchanged heat between the drain pipe and the heat sink and adheres to the heat sink is discharged. It is characterized by including a drainage pipe for discharging.

[0021]   In the first to third inventions, the external air having high temperature and high humidity has a relatively simple structure. Since it can be dried at the proper temperature, semi-permanently producing high quality air Can be supplied to the ozone generator to optimize ozone generation conditions and improve equipment performance. The performance can be stabilized. Therefore, caused by the humidity of the air And the durability and performance deterioration of the ozone generator due to changes in the external ambient temperature. And the problems that arise from it are eliminated.

[0022]   A fourth aspect of the present invention is the ozone water generating device according to any one of the first to third aspects, In the mixing section, a check valve is provided in a portion connecting the ozone supply line, The mixing section injects the water supplied from the water supply line to operate the check valve. It is provided with an injector that opens and introduces ozone, and dissolves ozone in water. The gas-liquid separator is supplied with ozone water in which ozone is dissolved from the injector, and is supplied. The supplied ozone water is discharged through a drain pipe, and ozone that is insoluble in water is returned to the return line. Is again supplied to the inlet side of the gas-liquid separator and is mixed with water. It is characterized by

[0023]   In the fourth invention, ozone can be supplied to the mixing section with a simple structure, In addition, since a return line is provided, the amount of dissolved ozone can be doubled by recycling ozone. Can be made

[0024]   A fifth aspect of the present invention is the ozone water generating device according to any one of the first to fourth aspects, It is located inside the gas-liquid separator and detects the water level of ozone water in the gas-liquid separator. And a controller for controlling the amount of water supplied to the water supply line. .

[0025]   A sixth aspect of the present invention is the ozone water generating device according to the fifth aspect, wherein the controller is the gas liquid. Detects the rise in water level in the separator and controls the detected information to drive the ozone water generator An abnormal water level detection sensor is sent to the drive circuit, and the drive circuit is based on the information. Then, the electronic valve is configured to be controlled.

[0026]   A seventh aspect of the present invention is the ozone water generator according to the fifth or sixth aspect, wherein the controller is Check whether the water level of the gas-liquid separator is a safe water level at which ozone water can be discharged. It is characterized by comprising a safe water level detection sensor for detecting.

[0027]   In the fifth to seventh inventions, the performance of the device is prevented from deteriorating and the performance is stabilized. be able to. And the complexity of equipment maintenance can be reduced, It can be used universally outside regardless of the flow channel conditions.   In the sixth invention, the driving of the ozone generator and the drying unit can be stopped. Therefore, it is possible to prevent damage to the device due to back flow of ozone water in advance.   In the seventh invention, it is possible to judge whether or not the drainable safe water level is reached. Therefore, drainage can be controlled safely.

[0028]

[Embodiment of device]

  Hereinafter, embodiments of the present invention will be specifically described with reference to FIGS.   The ozone water generator according to the present invention introduces external air to convert oxygen into ozone. Ozone generator 20 having an ozone generator that allows it to flow out from ozone generator 20 From the water supply source 30 and the mixing unit 40 that mixes ozone and water from the water supply source 30. Solenoid valve provided in the water supply line 31 for controlling the flow of water to the mixing section 40 32, a drying unit 60 that supplies dry air to the ozone generator 20, and a drying unit 60. The pass line 70 for heat exchange with the ozone and the ozone generated from the dry air The injector 41 that mixes with water and ozone that does not dissolve in water are returned to the return line 9 The gas-liquid separator 80 to be re-introduced through 1 and the flow state of the gas-liquid separator 80 A controller for controlling wastewater and ozone generation is provided.

[0029]   The drying unit 60 is an introduction side of the external air introduced into the ozone generator 20, and The steam is liquefied into water and discharged, and the air is dried and supplied to the ozone generator 20. Is configured.

[0030]   The pass line 70 passes through the water supply line 31 to exchange heat with the drying section 60. Part of the water is sent to the drying section 60, and the water is sent to the water supply line 31 again. Is made.

[0031]   The injector 41 mixes ozone of the air dried by the drying unit 60 with water. In order to allow the ozone supply line 21 and the water supply line 31 to come in contact with each other, The valve 42 is provided, and the check valve 42 is opened by water injection using the flow velocity of water. , Is configured to introduce ozone from the ozone line 21 and dissolve it in water. .

[0032]   The gas-liquid separator 80 contains ozone water in which ozone is dissolved via the injector 41. Is introduced, ozone water is generated with water and ozone, and the liquid phase ozone in which ozone is dissolved in water is generated. The zoning water is discharged as it is through the discharge port 90, and the gas phase ozo that has not dissolved with the water. In order to carry out the re-melting process by re-injecting the gas through the return line 91, A certain space is formed in the.

[0033]   The controller is installed along the internal space of the gas-liquid separator 80, and the gas-liquid separator 8 The flow rate of ozone water that fills the inner space of 0 is detected and Is configured to control.

[0034]   The details will be described below.   The drying unit 60 is a dehumidifier that removes moisture in the air and dries as shown in FIG. 61, a cooler 62 for cooling the dehumidifier 61, and between the dehumidifier 61 and the cooler 62 And a thermoelectric element 63 provided in the.

[0035]   The dehumidifier 61 is provided with an air introduction pipe 66 that introduces external air on one side, Case 64 and heat that is built in the case 64 and that comes into contact with external air The air that has come into contact with the sink 65 and the heat sink 65 is sent to the ozone generator 20. Therefore, heat is removed from the air exhaust pipe 66a provided at one end of the case 64 and the heat sink 65. A drain pipe 67 for discharging the water 69 that has been replaced and attached to the heat sink 65 to the outside. It is composed of

[0036]   The cooler 62 is a heater block that is in contact with the pass line 70 and exchanges heat. It is composed of the KU 68.

[0037]   The thermoelectric element 63 is a kind of thermoelectric module, Case of the dehumidifier 61 so that the Peltier effect in which a temperature difference is generated on both sides is obtained. Both surfaces contact each other between the 64 wall surface and the heat block 68 wall surface of the cooler 62. The electric current flowing through the thermoelectric element 63 operates the driving circuit board 92. It is configured to be controlled by mode selection.

[0038]   As shown in FIG. 4, the injector 41 has a water supply line 31 on one side and an air supply line on the other side. It is connected to the liquid separator 80 side and opens and closes at a constant pressure outside the section where the flow path becomes narrow. Is provided with a check valve 42 for injecting the supplied water, and the check valve is operated at the flow velocity. The injector hole 4 that opens and closes 42 to allow ozone to flow into the inside of the flow path. 3 is provided.

[0039]   The gas-liquid separator 80, as shown in FIG. 5, is a flow of water discharged from the injector 41. It is manufactured by selecting an appropriate shape that gives the dynamic flow a natural rotation state. Cylinder, square pillar, A cylindrical body such as a triangular prism can be selected. If it is cylindrical, the flow of water is stable and is there. In addition, an upright type that can separate gas and liquid by gravity is suitable. .

[0040]   The upper portion of the gas-liquid separator 80 is closed, and the closed portion is the closed portion of the gas-liquid separator 80. For re-dissolving circulation of ozone via the gas-liquid separator 80 via the return line 91. Is connected to the return hole 86 of the.

[0041]   A passage 81 connected to the discharge port 90 is provided in the lower portion of the gas-liquid separator 80. . The hole at the top of the gas-liquid separator 80 is closed with a cap 82 that can be disassembled. , Electrically with the drive circuit board 92 or a separate control panel (not shown) A connectable socket 83 is connected to the cap 82.

[0042]   The controller detects the water level due to fluctuations in the flow rate of the gas-liquid separator 80, and uses this detection information as the detection information. In order to control whether or not drainage is possible and ozone generation conditions accordingly, a gas-liquid separator 80 is used. The cap 82 is provided as a base end.

[0043]   The controller controls whether the outlet 90 connected to the passage 81 of the gas-liquid separator 80 is clogged or discharged. The rise in the water level in the gas-liquid separator 80, which appears when the drainage is delayed due to the obstacle, is detected. Information is sent to the drive circuit board 92, and electronic signals are sent from the drive circuit board 92. An abnormal water level detection sensor 84 provided in the gas-liquid separator 80 for controlling the valve 32; , Gas-liquid separation in order to detect the normal discharge level of ozone water by the gas-liquid separator 80. The low water level of the vessel 80 is detected, a certain point is designated, and that point is detected as the safe water level. And a rod-type safety water level detection sensor 85 for detecting abnormal water level. The cap 84 and the safety water level detection sensor 85 are supported by the cap 82, and the socket 8 It is connected to 3.

[0044]   The ozone water generating device of the present invention having the above-described configuration is suitable for household, shop, industrial, etc. It is possible to change the layout of the components according to the purpose of use.

[0045]   Next, the features and operation of the ozone water generator of the present invention having the above-mentioned configuration , The generation process of ozone water, and the operation and operation modes will be described.

[0046]   The present invention is characterized by a drying unit 60 that dries air and supplies it to the ozone generator 20. , A double check valve 42 that allows ozone to flow in from the ozone generator 20 at a flow rate of water injection. Injector 41 part to which the combined structure is applied, and ozone water flowing into the gas-liquid separator 80 Of the undissolved ozone, the ozone was not dissolved again through the return line 91 and the water supply line 3 1 to re-dissolve the ozone-dissolved water as it is to the lower side of the gas-liquid separator 80. The recirculation part of ozone by the gas-liquid separator 80 discharged and water in the gas-liquid separator 80. Water and ozone are separated while inflowing water, and water is separated during the separation process or standby process. When the amount exceeds the limit water level in the gas-liquid separator 80, the flow of water is shut off by the electronic valve 32. Then, it controls the reverse flow of water and at the same time controls the ozone generation.

[0047]   In the ozone water generator according to the present invention, as shown in FIG. When a switch (not shown) attached to 92 is turned on, the electronic valve 32 is opened. Then, the water flows into the water supply line 31.

[0048]   At the same time, the ozone generator 20 senses the power source signal of the drive circuit board 92, and Voltage is applied to the ozone generator inside the generator 20 to intermittently or sustain the ozone. It is generated based on the conditions that have been specified (The ozone generation timing and cycle are driven. Controllable via circuit board 92).

[0049]   Water continuously passes through the electronic valve 32 and flows into the injector 41, and Water is injected through the small injector hole 43 inside the injector 41 at a flow velocity of At the same time, the ozone generated by the ozone generator 20 is injected through the check valve 42 into the injector. The ozone is sucked into the hole 43 and flows into the gas-liquid separator 80 while ozone is dissolved in water. It

[0050]   The flow of water formed between the injector 41 and the gas-liquid separator 80 will be described. Then, ozone water in which ozone is dissolved flows into the water through the injector 41, And ozone generate ozone-dissolved water. In the process, Ozone water is discharged as it is through the discharge port 90, and at this time, it does not dissolve in water. The vapor phase ozone rises and is connected to the water supply line 31 via the return line 91. It is again introduced into the inlet side of the gas-liquid separator 80 from the returned return hole 86, and re-exposed to water. Is dissolved.

[0051]   On the other hand, the external air required for the ozone generator 20 is dried through the drying unit 60. Supplied as qi. As a reference, when ozone is generated by the ozone generator 20, In this case, the lower the humidity of the air, the more free the impurities and the higher the purity. The amount of ozone produced is increased, and high quality ozone can be produced.

[0052]   The present invention separately uses external air as dry air to supply the ozone generator 20. The drying unit 60 is applied as a constituent member of the ozone water generator.

[0053]   The drying unit 60 of the present invention includes a dehumidifier 61 that removes moisture in the air and dries it. A cooler 62 for cooling the dehumidifier 61 is provided between the cooler 62 and the dehumidifier 61. The thermoelectric element 63. The dehumidifier 61 has an air introduction pipe for introducing external air. 66 is provided on one side, and external air is blown in from the air introduction pipe 66. Case 64 has a built-in heat sink 65, and the air that comes in contact with the heat sink 65 The water inside is discharged as water 69 through the drainage pipe 67, and only dry air is discharged as air. It is supplied to the ozone generator 20 via the pipe 67.

[0054]   The cooler 62 that contacts the dehumidifier 61 is a pass line that communicates with the water supply line 31. 70 is formed in a predetermined shape along the heater block 68, and Thus, the heater block 68 is cooled. On the other hand, the thermoelectric element 63 has a drive circuit board. Electricity flows through the heater 92 of the dehumidifier 61 and the heater heater of the cooler 62. The space between the lock 68 and the wall surface is cooled by the Peltier effect.

[0055]   On the other hand, ozone and water are mixed by the injector 41 of the mixing section 40 and dissolved Water flows into the gas-liquid separator 80, and water and ozone are dissolved in the gas-liquid separator 80 and discharged. The final ozone water is discharged through the outlet 90.

[0056]   The ozone that was not dissolved in water in this process flows to the upper part in the gas-liquid separator 80, It re-enters the water supply line 31 along the turn line 91, resulting in a gas-liquid separator. Since it is redissolved in 80, all ozone is finally dissolved in water without being discarded. Drained as zonal water.

[0057]   In the ozone water generator of the present invention, if the outlet 90 is clogged during the operation of the device, the water will be The liquid separator 80 is filled, and at this time, it is installed in the upper part of the gas-liquid separator 80. The abnormal water level detection sensor 84 detects the abnormal water level and closes the electronic valve 32 to continue the water. By shutting off the unnecessary supply, backflow of water and ozone is prevented, and at the same time abnormal water level detection is performed. According to the output information, the driving of the ozone generator 20, the drying unit 60, and the electric field parts is stopped. Since it can be stopped, damage to the ozone water generator due to backflow can be prevented in advance. You can

[0058]   The water level of the gas-liquid separator 80 is detected to prevent the backflow of water and control the drive of various parts. In this regard, as shown in Fig. 5, the high water level is judged to be an abnormal water level. In addition to the abnormal water level detection sensor 84 that detects an abnormal water level at the time of contact, A long rod type that can be recognized as discharge and at the same time can be recognized as a normal water level at a specific point By using the safe water level detection sensor 85, the safe dischargeable water level and the water level rise Even if it can be discharged, it can be classified as a safe water level, etc., and safe control can be performed. Become.

[0059]   At this time, the gas-liquid separation is used as a sensor for detecting the flow rate fluctuation in the gas-liquid separator 80. Sensor for detecting water pressure in the container 80, proximity sensor capable of recognizing height of water surface, and limiter Position switch and buoyancy to activate the micro switch to the floating position of the reference object. It is possible to select and use a variety of sensors such as a sensor for detecting by doing so.

[0060]

[Effect of device]

  As described in detail above, the ozone water generator of the present invention is used for tap water, ground water, industrial  Use and purpose of various water such as agricultural water, environmentally purified water, insurance sanitation water, etc. It can be easily installed indoors or outdoors according to the purpose, and a large amount of water can be continuously converted to ozone water. It can be changed and environmentally treated contaminated water can be treated effectively.

[0061]   In addition, the stability of the equipment, which cannot be obtained from conventional ozone water generators, is guaranteed, and In order to maintain ozone generation conditions at an optimal level, improve overall device performance and It has the effect of enabling human operation, especially when supplying dry air with an ozone generator. This makes it possible to supply high-quality air semi-permanently with a relatively simple structure. There is an effect that you can.

[0062]   In addition, it can prevent the clogging of water that frequently occurs during operation of the equipment and extend its life, There is an effect that a highly reliable ozone water generator can be manufactured.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing a conventional ozone water generator.

FIG. 2 is a sectional view showing an ozone water generator according to an embodiment of the present invention.

FIG. 3 is a cross-sectional view showing a drying unit of the ozone water generator according to the embodiment of the present invention.

FIG. 4 is an enlarged cross-sectional view showing a mixing unit for mixing water and ozone of the ozone water generator according to the embodiment of the present invention.

FIG. 5 is an enlarged cross-sectional view showing a gas-liquid separator and its controller of the ozone water generator according to the embodiment of the present invention.

[Explanation of symbols]

20 Ozone generator 21 Ozone supply line 30 water supply 31 Water supply line 32 electronic valve 40 mixing section 41 injectors 42 Check valve (check valve) 50 Ozone water generator 60 Drying section 61 dehumidifier 62 cooler 63 thermoelectric element 64 cases 65 heat sink 66 Air introduction pipe 66a Air discharge pipe 67 Drain pipe 68 heater block 70 pass line 80 gas-liquid separator 81 passage 82 Gas-liquid separator cap 83 socket 84 Abnormal water level detection sensor 85 Safety water level detection sensor 86 Return Hall 90 outlet 91 Return line 92 Drive circuit board

Claims (7)

[Scope of utility model registration request] 1. An ozone generator having an ozone generator for converting oxygen of supplied external air into ozone, and ozone supplied from the ozone generator via an ozone supply line and a water supply line from a water supply source. And a solenoid valve provided in the water supply line for controlling the water flow from the water supply source to the mixing section, and a mixing section for mixing with water supplied via In the ozone water generator including the gas-liquid separator, the water vapor passing through the water supply line and a drying unit that liquefies the water vapor of the external air into water and discharges the dried air to the ozone generator. A part of the ozone water is sent to the drying section, and water is again returned to the water supply line. 2. The drying unit includes a dehumidifier that removes water vapor from the air to dry the air, a cooler that cools the dehumidifier, and a thermoelectric generator that is provided between the dehumidifier and the cooler. The ozone water generator according to claim 1, further comprising an element. 3. The dehumidifier includes a case having an air introduction pipe for introducing external air on one side, a heat sink which is built in the case and is in contact with the external air, and another end of the case. The air discharge pipe which is provided and sends out the air dried by the heat sink to the ozone generator, and the drain pipe which discharges water attached to the heat sink by heat exchange with the heat sink. Ozone water generator. 4. The check valve is provided in a portion connecting the ozone supply line in the mixing section, and the mixing section injects water supplied from the water supply line,
The check valve is opened to introduce ozone, and an injector that dissolves ozone in water is provided, and the gas-liquid separator is supplied with ozone water in which ozone is dissolved from the injector, and drains the supplied ozone water. The ozone water according to any one of claims 1 to 3, wherein the ozone water is discharged through a pipe, and water-insoluble ozone is supplied again through a return line to the inlet side of the gas-liquid separator to be mixed with water. Generator. 5. A controller disposed inside the gas-liquid separator, for detecting the water level of the ozone water in the gas-liquid separator to control the water supply amount of the water supply line. Item 5. The ozone water generator according to any one of items 1 to 4. 6. The controller includes an abnormal water level detection sensor that detects a rise in water level in the gas-liquid separator and sends the detected information to a drive circuit that controls the drive of the ozone water generator. The ozone water generator according to claim 5, wherein the circuit is configured to control the electronic valve based on the information. 7. The controller according to claim 5, wherein the controller includes a safety water level detection sensor that detects whether or not the water level of the gas-liquid separator is a safety water level at which ozone water can be discharged. Ozone water generator.